That graph is a little misleading. For example, Japan is right up there but the majority of their government's debt is internal; not good by any means but not a

That graph is a little misleading. For example, Japan is right up there but the majority of their government's debt is internal; not good by any means but not as volatile as the Greek situation. Worst comes to worst, the Japs can just print money on demand - in fact I think there has come to pass a tacit understanding that that is exactly what will happen, as there is no chance of the money ever being paid off by any other means. The Greeks have no such luxury. I'd like to see a ranking of countries by external public debt.